diff --git a/src/renderer/widgets/Background.cpp b/src/renderer/widgets/Background.cpp
index 565076a..ac100d0 100644
--- a/src/renderer/widgets/Background.cpp
+++ b/src/renderer/widgets/Background.cpp
@@ -24,6 +24,8 @@ CBackground::~CBackground() {
 
 void CBackground::registerSelf(const ASP<CBackground>& self) {
     m_self = self;
+
+    type = "background";
 }
 
 void CBackground::configure(const std::unordered_map<std::string, std::any>& props, const SP<COutput>& pOutput) {
diff --git a/src/renderer/widgets/Image.cpp b/src/renderer/widgets/Image.cpp
index 0ff1c6f..57ffd50 100644
--- a/src/renderer/widgets/Image.cpp
+++ b/src/renderer/widgets/Image.cpp
@@ -14,6 +14,8 @@ CImage::~CImage() {
 
 void CImage::registerSelf(const ASP<CImage>& self) {
     m_self = self;
+
+    type = "image";
 }
 
 static void onTimer(AWP<CImage> ref) {
diff --git a/src/renderer/widgets/Label.cpp b/src/renderer/widgets/Label.cpp
index bd7692c..c2f0546 100644
--- a/src/renderer/widgets/Label.cpp
+++ b/src/renderer/widgets/Label.cpp
@@ -14,6 +14,8 @@ CLabel::~CLabel() {
 
 void CLabel::registerSelf(const ASP<CLabel>& self) {
     m_self = self;
+
+    type = "label";
 }
 
 static void onTimer(AWP<CLabel> ref) {
diff --git a/src/renderer/widgets/Shape.cpp b/src/renderer/widgets/Shape.cpp
index c1c6dc1..158a955 100644
--- a/src/renderer/widgets/Shape.cpp
+++ b/src/renderer/widgets/Shape.cpp
@@ -9,6 +9,8 @@
 
 void CShape::registerSelf(const ASP<CShape>& self) {
     m_self = self;
+
+    type = "shape";
 }
 
 void CShape::configure(const std::unordered_map<std::string, std::any>& props, const SP<COutput>& pOutput) {